
TEACHING

Spring 2015: ECE 574, Nanophotonics

Course Description: The field of Nanophotonics, most literally, is the fusion between nanotechnology and photonics, and can be described as encompassing the set of devices, structures, and materials where the electronic and optical properties of a system begin to diverge strongly from the materials' bulk properties, and depend strongly on both size and geometry. Nanophotonics is an emerging contemporary area of research with a wide range of new applications. Understanding the optical properties of nanometer scale structures of semiconductors, metals, and composites will be crucial for future optoelectronic devices and technology designed to couple with, complement, or possibly even replace, present and future nanoelectronic devices. Separated from any electronic components, nanoscale or subwavelength photonic structures offer new possibilities for sensing, imaging, waveguiding, and many other applications. This course will examine the quantum mechanical interaction between light and semiconductors, metals, and composites; including cavity electrodynamics, polarition cavity condensation, subwavelength structures, metamaterials, plasmonics and applications. Presentations by students are included to develop oral communication skills as well as to incorporate leadingedge research into the course.
Prerequisites: ECE455 and PHY486 or equivalent course in quantum mechanics, instructor permission.
Course Syllabus
Office Hours:
Prof. Wasserman: Thursday, 12pm, MNTL 2258
Will Streyer: Wednesday 45 pm (ECEB 3003) 
Grading
Homework/Attendance: 30%
MidTerm Exam: 15%
Quizzes (5): 10%
Final Project: 25%
Final Exam: 20%

Textbooks and Reading Assignments
No textbooks required for this course. All exams and homeworks will be based on materials provided to students in lecture notes or available in journal papers.
Supplemental Resources:
The Physics of Semiconductors, M. Grundmann (Springer 2006)
Semiconductor Optics, C. Klingshirn (Springer, 2005)
Introduction to Nanophotonics, S. V. Gaponenko (Cambridge 2010)
Optical Processes in Semiconductors, J. Pankove (Dover 1971)
“Physics of Light and Optics”, Peatross and Ware, http://optics.byu.edu/textbook.aspx
Optics, Eugene Hecht, with contributions by Alfred Zajac, (AddisonWesley, 1987).
John Davies, The Physics of LowDimensional Semiconductors, is a wonderful 1st year grad/upper level undergrad text. He covers a lot of the concepts we have covered in class thus far. His writing is understandable, and he does a good job working through the math. It is not particularly advanced, but does a great job of explaining the basics clearly.
Ashcroft & Mermin, Solid State Physics: The classic textbook for Solid State. good description of phonons, but light on optics (no pun intended).
For Quantum Mechanics, I like Liboff, Introductory Quantum Mechanics, but will also refer to Griffiths or Gasiorowicz. There are a lot of good QM books. These are just the ones I have in my office.
For Optoelectronics, it's hard to beat Yariv's Optical Electronics in Modern Communication, but Saleh and Teich's "Fundamentals of Photonics" and Rosencher and Vinter's "Optoelectronics" are also great texts. You all probably also have Chuang's Optoelectronics text which is fantastic.

Homework 
Homework is due at the beginning of class, one week after it is assigned. All homework will be posted on the course website and their due dates listed on the website. No late homework will be accepted. In extreme circumstances, and with a letter from Health Services and/or the Emergency Dean, a homework can be dropped, but only with the expressed approval of the course instructor.
Homework will be a mix of analytical, conceptual, and numerical problems. Students may work in groups to understand the homework problems and to work out approaches to solving them. However, the homework turned in should represent the individual students' own work, and cannot be copied from another student. Copied/reproduced homework constitutes a violation of the honor code, and will be treated as such.
Analytical Problems: Solutions must be legible, and must indicate the approach taken to solve the problem, as well as each step used in the approach. It is the students’ responsibility to make clear to the grader how the problem was solved and what the solution to the problem is. Illegible, or poorly annotated/described solutions will receive no credit. For clearly presented, well thoughtout solutions, partial credit will be granted even if the solution is not correct.
Conceptual Problems: Conceptual problems will ask for the student to explain in words and/or equations, a physical phenomenon or concept from the course. Answers are expected to be in clear and concise English, and free from grammatical and typographical errors. Students are expected to use their own words, but are free to cite from the literature, as long as all references are clearly noted. Students may also be asked to respond to questions regarding state of the art nanophotonics concepts or research, which will require use of the literature.
Numerical problems: Numerical problems are to be performed in Matlab. As a UIUC student, you have free access to Matlab through the University webstore (http://webstore.illinois.edu/home/). For those not familiar with Matlab, do not despair! Initial numerical problems will be mathematically and conceptually simply and will give you a chance to understand the basic operation and functioning of the program. Later numerical problems will be more complex, both conceptually and mathematically. All numerical homework programs will be turned in electronically to both the TA and the course instructor before class starts on the HW duedate. A basic example Matlab program is available below. This program calculates the normal incidence reflection from a dielectric surface as a function of wavelength and plots the results. Your program files should be named using the problem name and your initials (i.e. “reflection_DW.m”). The first two lines of the script should have the HW, problem name, your full name, your University ID number, and a brief description of the program, as shown in the example script. All numerical homework problems should be clearly and concisely annotated.
Example numerical homework:
Problem 0. Calculate the normal incidence reflection at an air/dielectric interface as a function of wavelength between 400700nm. The dielectric's index of refraction can be described, in this range, as n(L)=3+(0.4L)/7, where lambda (L) is the wavelength of light, in microns. Your script should be a function which plots Reflection vs L and outputs arrays for L, n, and R.
Problem Name: Reflection.
Solution: Reflection_WS.m

Exams and Quizzes 
Quizzes: There will be approximately five 10 minute quizzes over the course of the semester. These will be given in class and will consist of brief and straightforward questions on topics covered in recent lectures and homeworks. Quizzes will not be computationally or analytically challenging, but instead will be designed to test your conceptual understanding of the material, and more importantly, to give me feedback as to how well the class is retaining the course material.
Exams: There will be two exams for this course, one midterm and one final exam. The midterm exam will be in class and will cover all material in the course up to the exam date. Makeup exams will not be given. 
Final Project 
Each student will give an inclass presentation focused on a cutting edge research topic in nanophotonics or a numerical program (developed by the student) used for advanced simulation or calculation of a nanophotonic phenomenon. Presentations will be 15 minutes long, including 23 minutes for questions following the presentation. Presentations will be graded on technical content, oral communication and visual presentation skills, as well as the presenter’s ability to answer questions and discuss the presentation topic and its place in the larger context of nanophotonics.


